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nbde part1

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pinkred

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10+ Year Member
Aug 12, 2008
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    subliminal fringe of motar neuron pool is a useful concept in explaining the phenomenon of??

    1.direct inhibition
    2.reciprocal inervation
    3.central facilitation.
    4.monosynaptic conduction.

    ans:central facilitation

    can anyone explain this....i didnt understand.

    thanks.
     

    Sinatra Frank

    Full Member
    10+ Year Member
    Jun 28, 2008
    157
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    1. Pre-Dental
      Neuronal Pool
      • Discharge zone (liminal zone) - motor neurons activated by an afferent volley. Will usually include homonymous and synergistic motor neurons to muscles of a joint.
      • Subliminal fringe (facilitated zone) - usually includes motor neurons to muscles synergistic to those of the discharge zone. May not be fired by the afferent volley but, receive excitatory synapses (EPSPs) which makes it easier for subsequent afferent volleys to fire them (facilitation).



      Discharge and Facilitated Zones

      (Facilitated zone = subthreshold zone = subliminal zone)

      Permits localization of sensory stimuli.



      Increased Stimulus Increases the
      Size Of the Neuronal Pool


      In the bottom line the thing is that motor neurons from the subliminal zone will innervates muscles nearby the muscle from which affernt are rising..this will cause better and easier localization and transmission of the affernt stumuli.

       

      Dentogel

      Full Member
      10+ Year Member
      Jun 19, 2008
      48
      0
      1. Dentist
        Neuronal Pool

        • Discharge zone (liminal zone) - motor neurons activated by an afferent volley. Will usually include homonymous and synergistic motor neurons to muscles of a joint.
        • Subliminal fringe (facilitated zone) - usually includes motor neurons to muscles synergistic to those of the discharge zone. May not be fired by the afferent volley but, receive excitatory synapses (EPSPs) which makes it easier for subsequent afferent volleys to fire them (facilitation).



        Discharge and Facilitated Zones

        (Facilitated zone = subthreshold zone = subliminal zone)

        Permits localization of sensory stimuli.



        Increased Stimulus Increases the
        Size Of the Neuronal Pool


        In the bottom line the thing is that motor neurons from the subliminal zone will innervates muscles nearby the muscle from which affernt are rising..this will cause better and easier localization and transmission of the affernt stumuli.

        Hey Sinatra how was ur exam?
         
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        Dentogel

        Full Member
        10+ Year Member
        Jun 19, 2008
        48
        0
        1. Dentist
          hey dear ;)

          my exam is in 6 days.. i was suppose to fly today to newyork but due to change in plans i will only fly in 2 days.. dont worry i will write a longgggg post afterwords when i come back..

          good luck when is yours btw?
          Oh even i m gona appear for mine in abt a week hopefully.I thot u r over with it, i don kno i am getting a feeling as if i don kno anything ,jus wana getover with ir asap.All the best for ur exam, hope we both get thru it peacefully.
           
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